Vian is a town in Sequoyah County, Oklahoma, United States, adjacent to Interstate 40 at the intersection of U.S. Route 64 and Oklahoma State Highway 82. The population was 1,374 at the 2020 census, a 6.3 percent decline from the figure of 1,466 recorded in 2010. It is part of the Fort Smith Metropolitan Statistical Area.

Sequoyah County is a county located in the U.S. state of Oklahoma. As of the 2020 census, the population was 39,281. The county seat is Sallisaw. Sequoyah County was created in 1907 when Oklahoma became a state. It was named after Sequoyah, who created the Cherokee syllabary and its written language.